var JSON;
if (!JSON) {
    JSON = {};
}

(function(){
    "use strict";
    
    function f(n){
        // Format integers to have at least two digits.
        return n < 10 ? '0' + n : n;
    }
    
    if (typeof Date.prototype.toJSON !== 'function') {
    
        Date.prototype.toJSON = function(key){
        
            return isFinite(this.valueOf()) ? this.getUTCFullYear() + '-' +
            f(this.getUTCMonth() + 1) +
            '-' +
            f(this.getUTCDate()) +
            'T' +
            f(this.getUTCHours()) +
            ':' +
            f(this.getUTCMinutes()) +
            ':' +
            f(this.getUTCSeconds()) +
            'Z' : null;
        };
        
        String.prototype.toJSON = Number.prototype.toJSON = Boolean.prototype.toJSON = function(key){
            return this.valueOf();
        };
    }
    
    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, gap, indent, meta = { // table of character substitutions
        '\b': '\\b',
        '\t': '\\t',
        '\n': '\\n',
        '\f': '\\f',
        '\r': '\\r',
        '"': '\\"',
        '\\': '\\\\'
    }, rep;
    
    
    function quote(string){
    
        // If the string contains no control characters, no quote characters, and no
        // backslash characters, then we can safely slap some quotes around it.
        // Otherwise we must also replace the offending characters with safe escape
        // sequences.
        
        escapable.lastIndex = 0;
        return escapable.test(string) ? '"' +
        string.replace(escapable, function(a){
            var c = meta[a];
            return typeof c === 'string' ? c : '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
        }) +
        '"' : '"' + string + '"';
    }
    
    
    function str(key, holder){
    
        // Produce a string from holder[key].
        
        var i, // The loop counter.
 k, // The member key.
 v, // The member value.
 length, mind = gap, partial, value = holder[key];
        
        // If the value has a toJSON method, call it to obtain a replacement value.
        
        if (value && typeof value === 'object' &&
        typeof value.toJSON === 'function') {
            value = value.toJSON(key);
        }
        
        // If we were called with a replacer function, then call the replacer to
        // obtain a replacement value.
        
        if (typeof rep === 'function') {
            value = rep.call(holder, key, value);
        }
        
        // What happens next depends on the value's type.
        
        switch (typeof value) {
            case 'string':
                return quote(value);
                
            case 'number':
                
                // JSON numbers must be finite. Encode non-finite numbers as null.
                
                return isFinite(value) ? String(value) : 'null';
                
            case 'boolean':
            case 'null':
                
                // If the value is a boolean or null, convert it to a string. Note:
                // typeof null does not produce 'null'. The case is included here in
                // the remote chance that this gets fixed someday.
                
                return String(value);
                
            // If the type is 'object', we might be dealing with an object or an array or
            // null.
            
            case 'object':
                
                // Due to a specification blunder in ECMAScript, typeof null is 'object',
                // so watch out for that case.
                
                if (!value) {
                    return 'null';
                }
                
                // Make an array to hold the partial results of stringifying this object value.
                
                gap += indent;
                partial = [];
                
                // Is the value an array?
                
                if (Object.prototype.toString.apply(value) === '[object Array]') {
                
                    // The value is an array. Stringify every element. Use null as a placeholder
                    // for non-JSON values.
                    
                    length = value.length;
                    for (i = 0; i < length; i += 1) {
                        partial[i] = str(i, value) || 'null';
                    }
                    
                    // Join all of the elements together, separated with commas, and wrap them in
                    // brackets.
                    
                    v = partial.length === 0 ? '[]' : gap ? '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' : '[' + partial.join(',') + ']';
                    gap = mind;
                    return v;
                }
                
                // If the replacer is an array, use it to select the members to be stringified.
                
                if (rep && typeof rep === 'object') {
                    length = rep.length;
                    for (i = 0; i < length; i += 1) {
                        k = rep[i];
                        if (typeof k === 'string') {
                            v = str(k, value);
                            if (v) {
                                partial.push(quote(k) + (gap ? ': ' : ':') + v);
                            }
                        }
                    }
                }
                else {
                
                    // Otherwise, iterate through all of the keys in the object.
                    
                    for (k in value) {
                        if (Object.hasOwnProperty.call(value, k)) {
                            v = str(k, value);
                            if (v) {
                                partial.push(quote(k) + (gap ? ': ' : ':') + v);
                            }
                        }
                    }
                }
                
                // Join all of the member texts together, separated with commas,
                // and wrap them in braces.
                
                v = partial.length === 0 ? '{}' : gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' : '{' + partial.join(',') + '}';
                gap = mind;
                return v;
        }
    }
    
    // If the JSON object does not yet have a stringify method, give it one.
    
    if (typeof JSON.stringify !== 'function') {
        JSON.stringify = function(value, replacer, space){
        
            // The stringify method takes a value and an optional replacer, and an optional
            // space parameter, and returns a JSON text. The replacer can be a function
            // that can replace values, or an array of strings that will select the keys.
            // A default replacer method can be provided. Use of the space parameter can
            // produce text that is more easily readable.
            
            var i;
            gap = '';
            indent = '';
            
            // If the space parameter is a number, make an indent string containing that
            // many spaces.
            
            if (typeof space === 'number') {
                for (i = 0; i < space; i += 1) {
                    indent += ' ';
                }
                
                // If the space parameter is a string, it will be used as the indent string.
            
            }
            else 
                if (typeof space === 'string') {
                    indent = space;
                }
            
            // If there is a replacer, it must be a function or an array.
            // Otherwise, throw an error.
            
            rep = replacer;
            if (replacer && typeof replacer !== 'function' &&
            (typeof replacer !== 'object' ||
            typeof replacer.length !== 'number')) {
                throw new Error('JSON.stringify');
            }
            
            // Make a fake root object containing our value under the key of ''.
            // Return the result of stringifying the value.
            
            return str('', {
                '': value
            });
        };
    }
    
    
    // If the JSON object does not yet have a parse method, give it one.
    
    if (typeof JSON.parse !== 'function') {
        JSON.parse = function(text, reviver){
        
            // The parse method takes a text and an optional reviver function, and returns
            // a JavaScript value if the text is a valid JSON text.
            
            var j;
            
            function walk(holder, key){
            
                // The walk method is used to recursively walk the resulting structure so
                // that modifications can be made.
                
                var k, v, value = holder[key];
                if (value && typeof value === 'object') {
                    for (k in value) {
                        if (Object.hasOwnProperty.call(value, k)) {
                            v = walk(value, k);
                            if (v !== undefined) {
                                value[k] = v;
                            }
                            else {
                                delete value[k];
                            }
                        }
                    }
                }
                return reviver.call(holder, key, value);
            }
            
            
            // Parsing happens in four stages. In the first stage, we replace certain
            // Unicode characters with escape sequences. JavaScript handles many characters
            // incorrectly, either silently deleting them, or treating them as line endings.
            
            text = String(text);
            cx.lastIndex = 0;
            if (cx.test(text)) {
                text = text.replace(cx, function(a){
                    return '\\u' +
                    ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
                });
            }
            
            // In the second stage, we run the text against regular expressions that look
            // for non-JSON patterns. We are especially concerned with '()' and 'new'
            // because they can cause invocation, and '=' because it can cause mutation.
            // But just to be safe, we want to reject all unexpected forms.
            
            // We split the second stage into 4 regexp operations in order to work around
            // crippling inefficiencies in IE's and Safari's regexp engines. First we
            // replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
            // replace all simple value tokens with ']' characters. Third, we delete all
            // open brackets that follow a colon or comma or that begin the text. Finally,
            // we look to see that the remaining characters are only whitespace or ']' or
            // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
            
            if (/^[\],:{}\s]*$/.test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@').replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
            
                // In the third stage we use the eval function to compile the text into a
                // JavaScript structure. The '{' operator is subject to a syntactic ambiguity
                // in JavaScript: it can begin a block or an object literal. We wrap the text
                // in parens to eliminate the ambiguity.
                
                j = eval('(' + text + ')');
                
                // In the optional fourth stage, we recursively walk the new structure, passing
                // each name/value pair to a reviver function for possible transformation.
                
                return typeof reviver === 'function' ? walk({
                    '': j
                }, '') : j;
            }
            
            // If the text is not JSON parseable, then a SyntaxError is thrown.
            
            throw new SyntaxError('JSON.parse');
        };
    }
}());
